/* Target-dependent code for the Sanyo Xstormy16a (LC590000) processor.
- Copyright (C) 2001-2013 Free Software Foundation, Inc.
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include "dis-asm.h"
#include "inferior.h"
-#include "gdb_string.h"
-#include "gdb_assert.h"
#include "arch-utils.h"
-#include "floatformat.h"
#include "regcache.h"
-#include "doublest.h"
#include "osabi.h"
#include "objfiles.h"
+#include "gdbsupport/byte-vector.h"
enum gdb_regnum
{
to the function in r2. Further arguments are beginning in r3 then.
R13 is used as frame pointer when GCC compiles w/o optimization
R14 is used as "PSW", displaying the CPU status.
- R15 is used implicitely as stack pointer. */
+ R15 is used implicitly as stack pointer. */
E_R0_REGNUM,
E_R1_REGNUM,
E_R2_REGNUM, E_1ST_ARG_REGNUM = E_R2_REGNUM, E_PTR_RET_REGNUM = E_R2_REGNUM,
static const char *
xstormy16_register_name (struct gdbarch *gdbarch, int regnum)
{
- static char *register_names[] = {
+ static const char *register_names[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13",
"psw", "sp", "pc"
static void
xstormy16_extract_return_value (struct type *type, struct regcache *regcache,
- void *valbuf)
+ gdb_byte *valbuf)
{
int len = TYPE_LENGTH (type);
int i, regnum = E_1ST_ARG_REGNUM;
for (i = 0; i < len; i += xstormy16_reg_size)
- regcache_raw_read (regcache, regnum++, (char *) valbuf + i);
+ regcache->raw_read (regnum++, valbuf + i);
}
/* Function: xstormy16_store_return_value
static void
xstormy16_store_return_value (struct type *type, struct regcache *regcache,
- const void *valbuf)
+ const gdb_byte *valbuf)
{
if (TYPE_LENGTH (type) == 1)
{
/* Add leading zeros to the value. */
- char buf[xstormy16_reg_size];
+ gdb_byte buf[xstormy16_reg_size];
memset (buf, 0, xstormy16_reg_size);
memcpy (buf, valbuf, 1);
- regcache_raw_write (regcache, E_1ST_ARG_REGNUM, buf);
+ regcache->raw_write (E_1ST_ARG_REGNUM, buf);
}
else
{
int i, regnum = E_1ST_ARG_REGNUM;
for (i = 0; i < len; i += xstormy16_reg_size)
- regcache_raw_write (regcache, regnum++, (char *) valbuf + i);
+ regcache->raw_write (regnum++, valbuf + i);
}
}
struct regcache *regcache,
CORE_ADDR bp_addr, int nargs,
struct value **args,
- CORE_ADDR sp, int struct_return,
+ CORE_ADDR sp,
+ function_call_return_method return_method,
CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int argreg = E_1ST_ARG_REGNUM;
int i, j;
int typelen, slacklen;
- const gdb_byte *val;
- char buf[xstormy16_pc_size];
+ gdb_byte buf[xstormy16_pc_size];
- /* If struct_return is true, then the struct return address will
- consume one argument-passing register. */
- if (struct_return)
+ /* If returning a struct using target ABI method, then the struct return
+ address will consume one argument-passing register. */
+ if (return_method == return_method_struct)
{
regcache_cooked_write_unsigned (regcache, E_PTR_RET_REGNUM, struct_addr);
argreg++;
break;
/* Put argument into registers wordwise. */
- val = value_contents (args[i]);
+ const gdb_byte *val = value_contents (args[i]);
for (j = 0; j < typelen; j += xstormy16_reg_size)
{
ULONGEST regval;
wordaligned. */
for (j = nargs - 1; j >= i; j--)
{
- char *val;
- struct cleanup *back_to;
const gdb_byte *bytes = value_contents (args[j]);
typelen = TYPE_LENGTH (value_enclosing_type (args[j]));
slacklen = typelen & 1;
- val = xmalloc (typelen + slacklen);
- back_to = make_cleanup (xfree, val);
- memcpy (val, bytes, typelen);
- memset (val + typelen, 0, slacklen);
+ gdb::byte_vector val (typelen + slacklen);
+ memcpy (val.data (), bytes, typelen);
+ memset (val.data () + typelen, 0, slacklen);
/* Now write this data to the stack. The stack grows upwards. */
- write_memory (stack_dest, val, typelen + slacklen);
+ write_memory (stack_dest, val.data (), typelen + slacklen);
stack_dest += typelen + slacklen;
- do_cleanups (back_to);
}
store_unsigned_integer (buf, xstormy16_pc_size, byte_order, bp_addr);
/* Probably only in optimized case but legal action for prologue. */
else if ((inst & 0xff00) == 0x4600 /* 46SD mov rD, rS */
&& (inst & 0x00f0) >= 0x0020 && (inst & 0x00f0) <= 0x0070
- && (inst & 0x000f) >= 0x00a0 && (inst & 0x000f) <= 0x000d)
+ && (inst & 0x000f) >= 0x000a && (inst & 0x000f) <= 0x000d)
;
/* Optional copying of args in r2-r7 to stack. */
return plg_end;
/* Found a function. */
- sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL);
+ sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL).symbol;
/* Don't use line number debug info for assembly source files. */
- if (sym && SYMBOL_LANGUAGE (sym) != language_asm)
+ if (sym && sym->language () != language_asm)
{
sal = find_pc_line (func_addr, 0);
if (sal.end && sal.end < func_end)
return (CORE_ADDR) pc;
}
-/* The epilogue is defined here as the area at the end of a function,
+/* Implement the stack_frame_destroyed_p gdbarch method.
+
+ The epilogue is defined here as the area at the end of a function,
either on the `ret' instruction itself or after an instruction which
destroys the function's stack frame. */
+
static int
-xstormy16_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
+xstormy16_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR func_addr = 0, func_end = 0;
return 0;
}
-const static unsigned char *
-xstormy16_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
- int *lenptr)
-{
- static unsigned char breakpoint[] = { 0x06, 0x0 };
- *lenptr = sizeof (breakpoint);
- return breakpoint;
-}
+constexpr gdb_byte xstormy16_break_insn[] = { 0x06, 0x0 };
+
+typedef BP_MANIPULATION (xstormy16_break_insn) xstormy16_breakpoint;
/* Given a pointer to a jump table entry, return the address
of the function it jumps to. Return 0 if not found. */
if (faddr_sect)
{
LONGEST inst, inst2, addr;
- char buf[2 * xstormy16_inst_size];
+ gdb_byte buf[2 * xstormy16_inst_size];
/* Return faddr if it's not pointing into the jump table. */
if (strcmp (faddr_sect->the_bfd_section->name, ".plt"))
for (; addr < endaddr; addr += 2 * xstormy16_inst_size)
{
LONGEST inst, inst2, faddr2;
- char buf[2 * xstormy16_inst_size];
+ gdb_byte buf[2 * xstormy16_inst_size];
if (target_read_memory (addr, buf, sizeof buf))
return 0;
int i;
if (*this_cache)
- return *this_cache;
+ return (struct xstormy16_frame_cache *) *this_cache;
cache = xstormy16_alloc_frame_cache ();
*this_cache = cache;
xstormy16_frame_base_address
};
-static CORE_ADDR
-xstormy16_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, E_SP_REGNUM);
-}
-
-static CORE_ADDR
-xstormy16_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, E_PC_REGNUM);
-}
-
-static struct frame_id
-xstormy16_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- CORE_ADDR sp = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
- return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
-
/* Function: xstormy16_gdbarch_init
Initializer function for the xstormy16 gdbarch vector.
Called by gdbarch. Sets up the gdbarch vector(s) for this target. */
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ set_gdbarch_wchar_bit (gdbarch, 2 * TARGET_CHAR_BIT);
+ set_gdbarch_wchar_signed (gdbarch, 1);
+
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
/*
* Frame Info
*/
- set_gdbarch_unwind_sp (gdbarch, xstormy16_unwind_sp);
- set_gdbarch_unwind_pc (gdbarch, xstormy16_unwind_pc);
- set_gdbarch_dummy_id (gdbarch, xstormy16_dummy_id);
set_gdbarch_frame_align (gdbarch, xstormy16_frame_align);
frame_base_set_default (gdbarch, &xstormy16_frame_base);
set_gdbarch_skip_prologue (gdbarch, xstormy16_skip_prologue);
- set_gdbarch_in_function_epilogue_p (gdbarch,
- xstormy16_in_function_epilogue_p);
+ set_gdbarch_stack_frame_destroyed_p (gdbarch,
+ xstormy16_stack_frame_destroyed_p);
/* These values and methods are used when gdb calls a target function. */
set_gdbarch_push_dummy_call (gdbarch, xstormy16_push_dummy_call);
- set_gdbarch_breakpoint_from_pc (gdbarch, xstormy16_breakpoint_from_pc);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
+ xstormy16_breakpoint::kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
+ xstormy16_breakpoint::bp_from_kind);
set_gdbarch_return_value (gdbarch, xstormy16_return_value);
set_gdbarch_skip_trampoline_code (gdbarch, xstormy16_skip_trampoline_code);
- set_gdbarch_print_insn (gdbarch, print_insn_xstormy16);
-
gdbarch_init_osabi (info, gdbarch);
dwarf2_append_unwinders (gdbarch);
Initializer function for the Sanyo Xstormy16a module.
Called by gdb at start-up. */
-/* -Wmissing-prototypes */
-extern initialize_file_ftype _initialize_xstormy16_tdep;
-
void
_initialize_xstormy16_tdep (void)
{
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